The Who Sell Out is ruined by the idiotic adverts that are slotted in throughout. Sure, cute and daring at the time; idiotic now. 'I Can See For Miles' is one of the best songs ever though.
Live At Leeds has to be the most over-rated live album ever. Again, it's good, but considering The Who were one of the better bands to get their energy across in the studio, I really don't see how this is 'essential'. The covers are dumb.
Tommy is - in patches - absolutely incredible, but there's too much without a vocal and it's generally far too long to hold up to repeat listenings.
I love the Who's singles, but I'm not as hooked on their albums. Maybe in time.